EP 1792235 A1 20070606 - CALENDAR TIMEPIECE COMPRISING AN EQUATION-OF-TIME DEVICE
Title (en)
CALENDAR TIMEPIECE COMPRISING AN EQUATION-OF-TIME DEVICE
Title (de)
KALENDERUHR MIT ZEITGLEICHUNGSVORRICHTUNG
Title (fr)
PIECE D'HORLOGERIE A QUANTIEME COMPRENANT UN DISPOSITIF D'EQUATION DU TEMPS MARCHANTE
Publication
Application
Priority
- EP 2005009424 W 20050901
- EP 04021894 A 20040915
- EP 05777376 A 20050901
Abstract (en)
[origin: EP1637941A1] The timepiece has an additional minute hand (16) driven by a true time display gear train that drives a mobile carrying an additional hour hand (14) which indicates a true hour. The gear train drives the mobile through an additional equation cannon-pinion fixed on an hour wheel whose end is fixed with the hand (16). The cannon-pinion transmits true hour information to a true hour wheel.
IPC 8 full level
G04B 19/23 (2006.01)
CPC (source: EP)
G04B 19/23 (2013.01)
Citation (search report)
See references of WO 2006029721A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1637941 A1 20060322; EP 1792235 A1 20070606; EP 1792235 B1 20160316; WO 2006029721 A1 20060323
DOCDB simple family (application)
EP 04021894 A 20040915; EP 05777376 A 20050901; EP 2005009424 W 20050901